Researchers at the University of Vienna and ETH Zurich cultivate 'missing link' microorganism. What led to the emergence of complex organisms on Earth? It's a significant unanswered question in biology. Researchers from Christa Schleper's team at the University of Vienna and Martin Pilhofer's team
have taken a step towards resolving it. The scientists succeeded in cultivating a special archaeon and characterizing it more precisely using microscopic methods.
One of the currently most popular evolutionary theories assumes that eukaryotes arose from the fusion of an Asgard archaeon with a bacterium. Credit: © Florian Wollweber, ETH Zürich Co-first author Rafael Ponce sampling marine sediment at the Seca Canal in Piran, Slovenia. Credit: © Thiago Rodrigues-Oliveira, Univ. WienThe remarkable success of the Viennese group to cultivate a highly enriched Asgard representative finally allowed for a more detailed examination of the cells by microscopy. The ETH researchers in Martin Pilhofer’s group used a modern cryo-electron microscope to take pictures of shock-frozen cells.
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